Threats / TP-Link / CVE-2023-33538
CVE-2023-33538
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
TP-Link Multiple Routers vulnerability
TP-Link routers contain a command injection vulnerability in the WlanNetworkRpm component, allowing remote code execution. Affected end-of-life models include TL-WR940N, TL-WR841N, and TL-WR740N variants.
Verdict
Today item — known-exploited.
This command injection vulnerability enables unauthenticated remote attackers to execute arbitrary commands on vulnerable TP-Link routers. The high EPSS score and active exploitation indicate immediate risk to unpatched devices, particularly concerning given the end-of-life status of affected models
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Public proof-of-concept exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
3 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-06-16).
Probability (EPSS)
EPSS 0.42568 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: TP-Link, Multiple Routers. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-77 Command Injection — weakness family: Injection.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a malicious request targeting the /userRpm/WlanNetworkRpm endpoint with injected shell commands.
Business
Network infrastructure is compromised, enabling lateral movement into corporate systems and data exfiltration.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I execute commands to establish persistent access and modify router configurations for traffic interception.
Business
Sensitive communications are monitored; customer data and intellectual property are exposed to theft.
3
Lateral reach — past segmentation narrative 3
Attacker
I pivot from the compromised router to connected devices and internal network segments.
Business
Operational continuity is disrupted; remediation costs and incident response burden escalate significantly.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05